Reputation: 311
i have a table
table:
col1,col2
1,2
3,4
i want to create ETL to extract only port/column name in another table example my target table should contain one column with 2 rows contain column names
target:
target_column
col1
col2
so how can i do that
Upvotes: 0
Views: 63
Reputation: 3378
Query the metadata. Depending on the type of your DB this may differ. For MySQL that would be:
SELECT COLUMN_NAME
FROM INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_NAME = 'your_table_name'
AND TABLE_SCHEMA = 'your_database_name';
Here, try this fiddle.
Upvotes: 0